MESON Chess Problem Database

Problem Display
PID: 180464 (2R3B1/1pN5/1P1P4/n1pP3K/Ppk5/2p1p3/8/3Q2B1 w - - 0 1)

Lider, Valentin Viktorovich

Mat, 1974

2R3B1/1pN5/1P1P4/n1pP3K/Ppk5/2p1p3/8/3Q2B1

#2

10 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.dxc6#
  • Tries
    • 1.Bxe3?
      • 1...c2
        • 2.Qxc2#
      • 1...Sb3
        • 2.Qe2#
        • 2.Qf1#
      • 1...Sc6
        • 2.dxc6#
      • 1...b3!
    • 1.Bh7?
      • 1...c2
        • 2.Qd3#
      • 1...b3
        • 2.Qg4#
      • 1...Sb3
        • 2.Qd3#
      • 1...e2
        • 2.Bd3#
      • 1...Sc6!
  • Keys
    • 1.Sb5!
      • 1...c2
        • 2.Qxc2#
      • 1...b3
        • 2.Qd4#
      • 1...Sb3
        • 2.Qe2#
      • 1...Sc6
        • 2.dxc6#
      • 1...e2
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(e);OGATE::B(J)+P(D),XS(e)
  • Tries
    • Try
      • B(B);XP(b)
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
        • S(e);OGATE::B(J)+P(D),XS(e)
      • Refutation
        • P(c);
    • Try
      • B(J);
      • Vars
        • P(a);::QAB1(A)
        • P(c);SBLOCK::QAR(A)
        • S(e);SBLOCK::QAB1(A)
        • P(b);::B(J)
      • Refutation
        • S(e);
  • Actual
    • S(H);P_PINP(f)
    • Vars
      • P(a);OGATEB::QAR2(A),XP(a)
      • P(c);SBLOCK::QAR1(A)
      • S(e);SBLOCK::QAB(A)
      • S(e);N_SPINP(f),OGATE::B(J)+P(D),XS(e)
      • P(b);::R1(I),XP(f)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).